Serum or plasma concentration of total protein by nephelometry
This test measures the total amount of protein in your blood, which includes albumin and other proteins like globulins. Proteins are essential for maintaining fluid balance, supporting immune function, and transporting nutrients.
["Your blood protein levels help doctors assess hydration, kidney function, and overall health."]
Key facts at a glance
- LOINC
- 21523-6
- Short code
- ENA SM IgG Ser Ql
- Synonyms
- ENA SM IgG Ser Ql
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82784
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may order this test to check for conditions like dehydration, kidney disease, liver problems, or certain infections. It can also help monitor long-term health, especially in people with chronic illnesses.
What to Expect Before the Test
No special preparation is needed for this test. You’ll have a small needle inserted into your arm to draw blood. It usually takes a few minutes, and you may feel a brief pinch. Avoid alcohol for 24 hours before the test if instructed.
What the Results Mean
Results are typically reported in grams per deciliter (g/dL). Low protein levels might suggest malnutrition, kidney issues, or liver disease, while very high levels could indicate dehydration or certain blood disorders.
Common Conditions Monitored
This test is often used to monitor conditions like chronic kidney disease, liver cirrhosis, or severe infections. It can also help diagnose or track diseases like multiple myeloma or severe burns.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Total protein levels provide a broad overview of your body’s protein status. Low levels can signal problems with absorption, organ function, or fluid balance, while high levels may indicate dehydration or inflammation. Your provider will interpret results in the context of your symptoms and medical history.
Short name
Total Protein
Frequently asked questions
How long does it take to get my results?
Can I eat or drink before this test?
What if my protein levels are outside the normal range?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy